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Finding the Fourth Proportional to 52,608.64, 78,912.32 and 15,669.76

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Solution

The fourth proportional to 52,608.64, 78,912.32 and 15,669.76 is: 23,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,608.64 : 78,912.32 = 15,669.76 : x
  2. Step 2: Convert to fraction form
    52,608.64/78,912.32 = 15,669.76/x
  3. Step 3: Cross multiply
    52,608.64x = 78,912.32 × 15,669.76
  4. Step 4: Simplify right side
    52,608.64x = 1,236,537,115.44
  5. Step 5: Solve for x
    x = 1,236,537,115.44/52,608.64
  6. Step 6: Final answer
    x = 23,504.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.